試題詳解

14. A certain reaction has the form:

αA - Products

At 298 K, the concentration of A ([A]) versus time was measured. A plot of 1/[A] versus time (minutes) gave a straight line with a slope of 2.00 x 10^-2. [A]₀ represents the initial concentration at t = 0, and k is the rate constant. Which of the following statements about this reaction is (are) correct?
I. The differential rate law is rate = k[A]².
lI. The integrated rate law is 1/[A] = 1/[A]₀ - kt.
III. The rate constant is 2.00 x 10^-2 min^-1.
IV. If [A]₀ for this reaction is 0.100 M, the first half-life is 34.7 min.
V. If [A]₀ for this reaction is 0.100 M, it will take 1.50 x 10³ min to consume 0.0750 M of A.
(A)I
(B)II and III
(C)II and V
(D)III and IV
(E)I and V